Thanks for visiting Nikita! After 2½ years, Nikita closed on November 14th, 2008.

I've enjoyed making this service available and I'm glad so many people found it
useful. Nikita was popular, but not popular enough to justify continued
maintenance and upkeep.

The Wed Design Group hosts a validator
that crawls multiple pages, but the "validate entire site" option limits itself
to 100 URLs. As far as I'm aware, that's the only service online that's at all
similar to Nikita.